Cooler-flue and hopper for fume-arresting apparatus.



A. U. FIELD.

COOLER FLUE AND HOPPER FOR FUME ARRESTING APPARATUS.

APPLIEATION FILED FEB. 19, I914.

Patented July 13, 1915.

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INVEN A. U Field WI TNESSES COLUMBIA PLANOORAPH 60., WASHINGTON. D. c.

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ALFRED U. FIELD, OF BEDDING, CALIFORNIA.

oooL'En-rimr: AND HOPPER ron FUME-ARRESTING APPARATUS.

Application filed February 19, 1914. Serial No. 819,659.

To all whom it may concern Be it known that I, ALFRED U. FIELD, a citizen of the United States, residing at Redding, in the county of Shasta and State of California, have invented certain new and useful Improvements in Cooler-Flues and Hoppers for Fume-Arresting Apparatus; and I do declare the following to be a clear, full, and eXactdescription of the same, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the characters of reference marked thereon, which form a part of this application.

This invention relates to improvements in fume arresting apparatus used for treating the fumes from smelters commonly used for smelting copper and other base ores, the structure shown in this application being a part of that embodied in the structure used in carrying out my improved process for treating the fumes set forth in my application for patent, filed March 11th, 1914Ser. No. 823,976, and particularly relates to the cooler flues and hoppers used for lowering the temperature of the fumes and sublimating the flue dust and metallic oxids and causing them to drop and be retained in the hoppers from which they may be removed and utilized as a product of the smelter or again worked over in conjunction with the ores or otherwise refined.

A further object of the invention is to produce a simple and inexpensive device and yet one which will be exceedingly effective for the purposes for which it is designed.

These objects I accomplish by means of such structure and relative arrangement of the parts as will fully appear by a perusal of the following specification and claims.

On the drawings, similar characters of reference indicate corresponding parts in the several views.

Figure 1 is a longitudinal section of a fragmentary portion of the flue and hoppers showing the principle of construction thereof. Fig. 2 is a sectional view of the flue taken relatively on a line XX of Fig. 1. Fig. 3 is a sectional view taken on a line Y-Y of Fig. 1. 'Fig. 4 is a top plan view of a fragmentary portion of the jacket. Fig. 5 is a detailed view showing a damper control for a frigid air jacket.

Referring now more particularly to the characters of reference on the drawings, the

Specification of Letters Patent.

Patented J uly13, 1915.

side opposed to the direction from which the fumes pass and having its other side sloping to conform to the side of the hopper 2. Said baffle plate 4 extends approximately half way across the diameter -of the flue and I then provide baffle plates 5 interposed on the upper side of the flue approximately midway of the center line of each hopper, which baflle plates 5 project approximately half way'a'cross the diameter of the flue, It will thus be noted that the baflle plates 4 and 5 will keep the fumes in a continual wave like motion and hold them "in momentary suspension above each hopper whereby when the dust and metallic oxids sublimate they will readily drop into such hoppers 2.

The fumes in passing through the flue 1 are designed to be gradually cooled and since it is a well known fact that dilferent elements in such fumes will sublimate at different temperatures a gradual lowering of the temperature is occasioned by means of the following structure, namely: Disposed around any desired portion of the flue 1 is a jacket 6, which jacket is divided into compartments or sections by means of cross walls 7. At one end of each compartment is an opening 8 adapted to receive a pipe 9 through which air which has been previously cooled to a frigid degree may be conveyed into the jacket 6. At the opposite end of each compartment is another opening 10 controlled by a sliding valve 11 through which the frigid air, which has be come heated by this time, escapes thereby forming a continual discharge of frigid air through each compartment whereby the elements passing through the flue 1 will be cooled, and as has been noted, such cooling .of the fumes will cause the sublimation of certain elements therein, which elements will drop into the hoppers 2 and be removed at will.

On the flue 1, at such points as may be found desirable and suitable, I will arrange pyrometers and thermometers and other heat registering devices whereby accurate registrations of the temperature of the fumes may be observed and the cooling process thereof regulated accordingly.

Each of the compartments of the frigid air jacket is provided midway with a projecting baffle plate 12 which projects part way across the diameter of such jacket for the purpose of insuring a complete zone of frigid air being maintained within the compartment, such baffle plate preventing a rushing passage of the air when it is admitted into the compartment as would be the tendency if such baffle plate was not there.

From the foregoing description it will readily be seen that I have produced such a device as substantially fulfils the objects of the invention as set forth herein.

lVhile this specification sets forth in detail the present and preferred construction of the device, still in practice, such deviations from such detail may be resorted to as do not form a departure from the spirit of the invention.

Having thus described my invention what I claim as new and useful and desire to secure by Letters Patent is 1. A device of the character described comprising a flue having hoppers opening into thesame, a jacket disposed around said flue and divided into compartments, each compartment having an inlet and an outlet, each compartment having one portion thereof disposed above one of said hoppers and 3 the other portion disposed above an adjacent hopper, as described.

2. A device of the character described comprising a flue having hoppers opening into the same, a jacket disposed around said flue and divided into compartments, each compartment having an inlet and outlet, and means for adjusting the size of said outlets, as described.

3. A device of the character described comprising a flue, a plurality of hoppers opening into said flue and arranged in successive order, said hoppers having sloping sides, a baffle plate interposed between each pair of adjacent flues, each baffle plate hav- 5 ing a vertical side and a sloping side, said sloping side conforming to and alining with one of the sloping sides of one of said hoppers, as described.

In testimony whereof I affix my signa- 5 ture in presence of two witnesses.

ALFRED U. FIELD.

lVitnesses:

Z. CHENowETH, S. D. FURBER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Eatents, Washington, D. G. 

